pv-limit

Use pv-limit to set the path vector limit.

Use undo pv-limit to restore the default.

Syntax

pv-limit pv-number

undo pv-limit

Default

The path vector limit is 32.

Views

LDP view

LDP-VPN instance view

Predefined user roles

network-admin

Parameters

pv-number: Specifies the path vector limit in the range of 1 to 32.

Usage guidelines

LDP adds LSR ID information in a label request or label mapping message. Each LSR checks whether its LSR ID is contained in the message.

In addition, when the number of LSR IDs in the message reaches the path vector limit, LDP also considers that a loop occurs and terminates LSP establishment.

The configuration of this command takes effect only on new LDP sessions. To apply the configuration to existing LDP sessions, you must reset the LDP sessions by using the reset mpls ldp command.

Examples

# Set the path vector limit to 3 for LDP loop detection on the public network.

<Sysname> system-view
[Sysname] mpls ldp
[Sysname-ldp] pv-limit 3

Related commands

display mpls ldp parameter

loop-detect

maxhops